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Other than the Tahoe Limited Edition, the vehicle was redesigned for the 2000 model year on the new GMT800 platform, still shared with the full-sized pickups and SUV's.

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brake pedal falls to floor

I have a 2003 Yukon denali. I have replaced front hub assemblies on both sides. both front calipers, hoses, rotors and pads. and also drivers side rear caliper. also replaced master cylinder. manually and electronically bled the brake system 10 or more times. if stitting at a traffic light after about 10 seconds the brake pedal falls to the floor slowly and the truck starts moving forward. what can cause  this?

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I changed brakes rotors and calipers brakes still not working

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A “soft” brake pedal that goes all the way to the floor can be caused by a number of reasons.

  1. Low brake fluid – check for leaks underneath the car. ...
  2. Bad brake booster – this can cause longer stopping time. ...
  3. Failing master cylinder – this is usually the culprit if you're not losing brakefluid.
  4. https://www.youtube.com/watch?v=DzS4VOJw...

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